underground

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

These deposits formed when animals that died on the surface were washed into underground cavities, where they were eventually buried by sediment.

From Science Daily

In Arizona, parts of the Phoenix and Tucson areas have boosted groundwater by routing Colorado River water to basins carved into the desert, where it sinks underground.

From Los Angeles Times

Peatlands are massive underground carbon reservoirs, storing more carbon than all of the world's forests combined.

From Science Daily

These are held in dedicated warehouses or underground bunkers that have back-up electricity generators.

From BBC

Large and arrow-shaped, it sits at the mouth of the Strait and hosts Iranian naval vessels and missiles in underground tunnels.

From The Wall Street Journal